diff options
Diffstat (limited to 'contrib/perl5/ext/ODBM_File/ODBM_File.xs')
| -rw-r--r-- | contrib/perl5/ext/ODBM_File/ODBM_File.xs | 114 |
1 files changed, 97 insertions, 17 deletions
diff --git a/contrib/perl5/ext/ODBM_File/ODBM_File.xs b/contrib/perl5/ext/ODBM_File/ODBM_File.xs index 892c038..150f2ef 100644 --- a/contrib/perl5/ext/ODBM_File/ODBM_File.xs +++ b/contrib/perl5/ext/ODBM_File/ODBM_File.xs @@ -2,9 +2,6 @@ #include "perl.h" #include "XSUB.h" -#ifdef NULL -#undef NULL /* XXX Why? */ -#endif #ifdef I_DBM # include <dbm.h> #else @@ -30,7 +27,37 @@ #include <fcntl.h> -typedef void* ODBM_File; +typedef struct { + void * dbp ; + SV * filter_fetch_key ; + SV * filter_store_key ; + SV * filter_fetch_value ; + SV * filter_store_value ; + int filtering ; + } ODBM_File_type; + +typedef ODBM_File_type * ODBM_File ; +typedef datum datum_key ; +typedef datum datum_value ; + +#define ckFilter(arg,type,name) \ + if (db->type) { \ + SV * save_defsv ; \ + /* printf("filtering %s\n", name) ;*/ \ + if (db->filtering) \ + croak("recursion detected in %s", name) ; \ + db->filtering = TRUE ; \ + save_defsv = newSVsv(DEFSV) ; \ + sv_setsv(DEFSV, arg) ; \ + PUSHMARK(sp) ; \ + (void) perl_call_sv(db->type, G_DISCARD|G_NOARGS); \ + sv_setsv(arg, DEFSV) ; \ + sv_setsv(DEFSV, save_defsv) ; \ + SvREFCNT_dec(save_defsv) ; \ + db->filtering = FALSE ; \ + /*printf("end of filtering %s\n", name) ;*/ \ + } + #define odbm_FETCH(db,key) fetch(key) #define odbm_STORE(db,key,value,flags) store(key,value) @@ -46,10 +73,6 @@ static int dbmrefcnt; MODULE = ODBM_File PACKAGE = ODBM_File PREFIX = odbm_ -#ifndef NULL -# define NULL 0 -#endif - ODBM_File odbm_TIEHASH(dbtype, filename, flags, mode) char * dbtype @@ -59,6 +82,7 @@ odbm_TIEHASH(dbtype, filename, flags, mode) CODE: { char *tmpbuf; + void * dbp ; if (dbmrefcnt++) croak("Old dbm can only open one database"); New(0, tmpbuf, strlen(filename) + 5, char); @@ -75,7 +99,10 @@ odbm_TIEHASH(dbtype, filename, flags, mode) else croak("ODBM_FILE: Can't open %s", filename); } - RETVAL = (void*)(dbminit(filename) >= 0 ? &dbmrefcnt : 0); + dbp = (void*)(dbminit(filename) >= 0 ? &dbmrefcnt : 0); + RETVAL = (ODBM_File)safemalloc(sizeof(ODBM_File_type)) ; + Zero(RETVAL, 1, ODBM_File_type) ; + RETVAL->dbp = dbp ; ST(0) = sv_mortalcopy(&PL_sv_undef); sv_setptrobj(ST(0), RETVAL, dbtype); } @@ -86,17 +113,18 @@ DESTROY(db) CODE: dbmrefcnt--; dbmclose(); + safefree(db); -datum +datum_value odbm_FETCH(db, key) ODBM_File db - datum key + datum_key key int odbm_STORE(db, key, value, flags = DBM_REPLACE) ODBM_File db - datum key - datum value + datum_key key + datum_value value int flags CLEANUP: if (RETVAL) { @@ -109,14 +137,66 @@ odbm_STORE(db, key, value, flags = DBM_REPLACE) int odbm_DELETE(db, key) ODBM_File db - datum key + datum_key key -datum +datum_key odbm_FIRSTKEY(db) ODBM_File db -datum +datum_key odbm_NEXTKEY(db, key) ODBM_File db - datum key + datum_key key + + +#define setFilter(type) \ + { \ + if (db->type) \ + RETVAL = sv_mortalcopy(db->type) ; \ + ST(0) = RETVAL ; \ + if (db->type && (code == &PL_sv_undef)) { \ + SvREFCNT_dec(db->type) ; \ + db->type = Nullsv ; \ + } \ + else if (code) { \ + if (db->type) \ + sv_setsv(db->type, code) ; \ + else \ + db->type = newSVsv(code) ; \ + } \ + } + + + +SV * +filter_fetch_key(db, code) + ODBM_File db + SV * code + SV * RETVAL = &PL_sv_undef ; + CODE: + setFilter(filter_fetch_key) ; + +SV * +filter_store_key(db, code) + ODBM_File db + SV * code + SV * RETVAL = &PL_sv_undef ; + CODE: + setFilter(filter_store_key) ; + +SV * +filter_fetch_value(db, code) + ODBM_File db + SV * code + SV * RETVAL = &PL_sv_undef ; + CODE: + setFilter(filter_fetch_value) ; + +SV * +filter_store_value(db, code) + ODBM_File db + SV * code + SV * RETVAL = &PL_sv_undef ; + CODE: + setFilter(filter_store_value) ; |
